claude-three-tiers-haiku-sonnet-opus

IN premise — entries/2026/06/21/wiki-Claude_language_model-chunk-1.md

Created 2026-06-21T09:50:09+00:00

Claude ships in three standard model size tiers: Haiku (smallest/cheapest), Sonnet (mid-tier), and Opus (largest/most capable), with Mythos as a restricted-access tier above Opus

Summary

Claude's model lineup is a clear size-and-price ladder: Haiku for cheap and fast tasks, Sonnet for balanced work, Opus for the heaviest lifting, with a restricted Mythos tier locked above Opus. This structure anchors every cost, capability, and access decision the system makes about which model to reach for on a given job.

Dependents

These beliefs depend on this one:

IN claude-tiered-strategy-manages-capability-safety-spectrum — Claude's model strategy creates a structured capability-safety spectrum: three public tiers (Haiku/Sonnet/Opus) with safety classification scaling by capability (Opus 4 at Level 3), plus a restricted tier (Mythos) for the highest-capability models — systematically linking access to risk.